Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
vai cua » dai cua, hai cua, lai cua
anh vai » anh va, anh bai, anh van
van anh » van thanh, tuan anh, van minh
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
v nang » va nang, vu nang, van nang
ve dao » va dao, ve bao, te dao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ((y nang) or (v nang)) ma hoi. hieu ((ve dao) OR (de dao)) duc van anh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((y nang) OR (v nang)) ma hoi. hieu ((ve dao) OR (de dao)) duc van anh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((y nang) or (v nang)) ma hoi. hieu ((ve dao) OR (de dao)) duc van anh vai cua tre*".